Derivative Instruments and Hedging Activities (Pre-Tax Gains (Losses) On Derivatives Designated As Hedging Instruments) (Details) (Designated As Hedging Instrument [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Derivative Instruments, Gains (Loss) [Line Items]
Total amount recognized in earnings	$ (10)	$ 39	$ (55)	$ 0
Interest Expense [Member]
Derivative Instruments, Gains (Loss) [Line Items]
Interest contracts effective amount recognized in earnings	0	0	0	1
Net Sales And Other Operating Income [Member]
Derivative Instruments, Gains (Loss) [Line Items]
Commodity Contracts effective amount recognized in earnings	6	5	5	(5)
Cost Of Products Sold [Member]
Derivative Instruments, Gains (Loss) [Line Items]
Commodity Contracts effective amount recognized in earnings	(3)	(3)	(5)	(6)
Commodity contracts ineffective amount recognized in earnings	(13)	37	(55)	10
Other Income (Expense) - Net [Member]
Derivative Instruments, Gains (Loss) [Line Items]
FX Contracts effective amount recognized in earnings	$ 0	$ 0	$ 0	$ 0